@keyframes breathing {
    0%, 100% {
      transform: scale(1);
      opacity: 1;
    }
    50% {
      transform: scale(1.06);
      opacity: 0.95;
    }
  }

body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    margin-top: 60px;
    padding: 0;
    background-color: #ffffff;
}

h1 {
    font-size: 30px;
    margin: 20px 10% 20px 10%;
}

h3 {
    font-size: 18px;
}

p {
    font-size: 14px;
    margin: 20px 5% 20px 5%;
}

ul {
    list-style-type: none;
    padding: 20px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* デフォルトは3カラム */
    gap: 20px;
    max-width: 600px;
}

.top-link {
    font-size: 20px;
}

.chart-area {
    padding: 5%;
}

.chart-title {
    background-color: aqua;
    font-size: 20px;
    margin-top: 70px;
}

@media screen and (max-width: 768px) {
    h1 {
        font-size: 20px;
        
    }
    .top-link {
    font-size: 14px;
}

}